Support
Help with your account, gameplay, and the Dueloku app.
Contact us
Dueloku is real-time, head-to-head competitive sudoku — two players race the same puzzle live, with ELO ranking across four difficulties, friends, and leaderboards.
The fastest way to reach us is by email at support@dueloku.com. We read every message and aim to reply within two business days. When you write in, it helps to include the email address on your account, the device and platform you're using (iOS, Android, or web), and a short description of what happened.
Frequently asked questions
How do I create an account?
Open the app and sign up with your email address, or use "Sign in with Google". You can also start playing as a guest and convert to a full account later without losing your progress.
I forgot my password — what now?
Use the "Forgot password" link on the sign-in screen to receive a reset email. If you signed up with Google, sign in with Google instead of a password.
How does ranking work?
Each of the four difficulties — Easy, Medium, Hard, and Evil — has its own ELO rating. Win a live match and your rating for that difficulty goes up; lose and it goes down, based on your opponent's rating.
I hit a bug or a match didn't work.
Email us at support@dueloku.com with what you were doing, the difficulty you were playing, and roughly when it happened. Screenshots help a lot.
How do I delete my account?
You can request deletion of your account and associated data at any time. See the Account and data deletion section of our Privacy Policy for details, or email support@dueloku.com from your account address with the subject "Delete my account".
Get the app
You can play Dueloku in your browser at app.dueloku.com, or download it from the App Store or Google Play.
Privacy
For details on what data we collect and how we handle it, see our Privacy Policy.